Interstate agreements are formal arrangements made between two or more states in the United States to address shared issues or concerns. These agreements can cover a wide range of topics, including water rights, transportation, and environmental protection. They help states collaborate and find solutions that benefit all parties involved. These agreements can take various forms, such as compacts, treaties, or memorandums of understanding. They often require approval from the U.S. Congress if they involve significant powers or resources. By working together through interstate agreements, states can effectively manage resources and address challenges that cross state lines.